EP 2625228 B1 20141022 - UNDERCOAT PAINT COMPOSITION EXCELLENT IN TERMS OF CORROSION RESISTANCE
Title (en)
UNDERCOAT PAINT COMPOSITION EXCELLENT IN TERMS OF CORROSION RESISTANCE
Title (de)
ZUSAMMENSETZUNG VON GRUNDIERLACK MIT AUSGEZEICHNETER KORROSIONSBESTÄNDIGKEIT
Title (fr)
COMPOSITION DE PEINTURE DE SOUS-COUCHE EXCELLENTE EN TERMES DE RÉSISTANCE À LA CORROSION
Publication
Application
Priority
- JP 2010150503 A 20100630
- IB 2011000304 W 20110216
Abstract (en)
[origin: WO2012001468A1] [Problem] To provide a chromium-free undercoat paint composition giving excellent corrosion resistance at the edges, in scratched parts and in worked parts of pre-coated metal sheets. [Means of Resolution] An undercoat paint composition which is characterized in that it includes (A) bisphenol-type epoxy resin of number average molecular weight from 400 to 10, 000 or a modified form of such a resin and/or hydroxyl group-containing resin of hydroxyl group value from 5 to 200 mgKOH/g and number average molecular weight from 500 to 20,000, (B) blocked polyisocyanate compound and/or melamine resin and, with respect to the total amount of the resin solid' fractions of the (A) and (B) components, (C) from 10 to 45 mass% magnesium vanadate, (D) from 2 to 20 massl calcium ion-exchanged silica, (E)a from 10 to 45 mass% of at least one compound selected from among the group comprising zinc phosphate, zinc diphosphate, zinc dihydrogen phosphate and zinc tripolyphosphate, and (F) from 0.1 to 5 mass% of at least one compound selected from among the group comprising cerium compounds, tungstic acid compounds and molybdic acid compounds (excluding magnesium molybdate).
IPC 8 full level
C08K 5/29 (2006.01); C08G 59/40 (2006.01); C08G 59/50 (2006.01); C08K 3/24 (2006.01); C08K 3/36 (2006.01); C09D 5/00 (2006.01); C09D 5/08 (2006.01); C09D 163/00 (2006.01); C09D 167/00 (2006.01)
CPC (source: EP)
C08G 59/4028 (2013.01); C08G 59/5086 (2013.01); C09D 5/002 (2013.01); C09D 5/084 (2013.01); C09D 163/00 (2013.01); C09D 167/00 (2013.01); C08K 3/24 (2013.01); C08K 3/36 (2013.01); C08K 5/29 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012001468 A1 20120105; CN 102884141 A 20130116; CN 102884141 B 20160817; EP 2625228 A1 20130814; EP 2625228 B1 20141022; JP 2012012497 A 20120119
DOCDB simple family (application)
IB 2011000304 W 20110216; CN 201180021669 A 20110216; EP 11715734 A 20110216; JP 2010150503 A 20100630